Now, the “So Sophisticated” rapper is filing a suit of his own against pop-EDM duo LMFAO over the refrain “Everyday I’m shufflin'” from the band’s 2011 smash, “Party Rock Anthem.” The suit alleges that the phrase was lifted from Ross’ 2006 debut single, “Hustlin’,” which features the refrain, “Everyday I’m hustlin’.”

According to The Hollywood Reporter, the lawsuit, which was filed in Florida federal court, reads in part: “The use of Hustlin’ in ‘Party Rock Anthem’ is readily apparent, despite the slight change from ‘Everyday I’m hustlin’ …’ to ‘Everyday I’m shufflin’…” and constitutes, inter alia, the creation of an unauthorized derivative work.”

The suit also cites the song’s fortunes outside of just record sales (7.5 million copies and counting), referring to the numerous and lucrative licensing opportunities “Party Rock Anthem” generated in everything from TV shows to video games to airline commercials.